A method and system for compressing and displaying information redundancy jitter characteristics

Abstract

The invention discloses a method and system for compressing and displaying information redundancy jitter characteristics. The alarm information jitter characteristic parameters based on a SCADA alarm system are collected by setting a collection period, and the alarm information jitter rate calculation is constructed according to the collected alarm information jitter characteristic parameters. Model, judge whether the alarm information jitter rate obtained by the alarm information jitter rate calculation model exceeds the preset threshold, if it exceeds the threshold, select a time window according to the statistical big data theorem, execute and build a compression display and decompression strategy, and complete the display of alarm information Otherwise, the alarm information is directly displayed. The present invention has a good inhibitory effect on flooding alarm and low-efficiency redundant alarm, solves the screen brushing and screen flickering caused by massive alarm information, reduces the work intensity of operation and maintenance personnel; improves SCADA alarm The information expression and storage efficiency of the log system, as well as the information loading capacity and information layout utilization rate, maximize the amount of alarm information (information entropy).

Description

technical field [0001] The present invention relates to the technical field of information processing and compression, in particular to a method and system for compressing and displaying information redundancy jitter characteristics. Background technique [0002] The current mainstream SCADA systems are equipped with alarm, event or log record storage and display systems, which can provide information support for operation and maintenance personnel to evaluate and decide on the running status of equipment and systems. The accuracy, stability and high efficiency of the information expression of this system play a vital role in the whole SCADA system. Usually the mainstream SCADA system sets up a list of events and alarm information, and adopts the principle of strictly following the layout and display of the time series of information occurrence. At the same time, different colors and flashes are used to emphasize and distinguish information. [0003] The existing event ala...

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Problems solved by technology

[0003] The existing event alarm system can basically meet the requirements when the amount of information is not large or the generation rate is low

However, when it is applied to large-scale power plants or system group SCADA, there will be a "flooding" alarm problem in which massive alarm information emerges simultaneously in a short period of time, and an inefficient alarm problem in which a large number of redundant alarms fill the layout. In these two cases, usually Both will reduce the amount of information displayed by event information, and bring great difficulties in information retrieval and search, making the information expression of the entire SCADA system very inefficient. The main problems are:

[0004] 1. Massive information alarms and flooding alarms will bring information "swipe screen", which makes the operation and maintenance personnel unable to carefully check the specific information, resulting in the omission of important information;

[0005] 2. Some "chattering" event information keeps swiping the screen, which will quickly move important information out of the line of sight of personnel, reducing the amount of information and efficiency of important information expressed by the system;

[0006] 3. A large amount of redundant event information also brings great challenges to data persistent storage and offline analysis and search

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